Yellowworld's 2012 Nano Contest Entry

[yellowworld]

okay okay okay!!

so i got the first coat of epoxy and sand done but there are still spots that arent covered as much as i would like them to be! here is what it looks like right now











I had a thought while i was working on it, but im not to sure how it will work. Anyway's i want to try to replicate an island surround by a coral reef, i know that most islands are volcanic and that rock is dark if not black that fades to a lighter grey or brown as it approaches the water. How could i colour up the rock above the water to a darker colour almost black. Could i put the some food die in the epoxy when i brush it on?